Gassner, H., Wanzenböck, J., Jagsch, A., & Patzner, R. A. (1999). Hydroakustische Fischbestandserhebungen in vier Salzkammergutseen (Vol. 52).
Schlüsselwörter: Fisch, Wanderung, Hydroakustik, Methode
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Angermeier, P. L., & Smogor, R. A. (1995). Estimating number of species and relative abundances in stream-fish communities: Effects of sampling effort and discontinuous spatial distributions (Vol. 52).
Zusammenfassung: The authors sampled fishes and measured microhabitat in series of contiguous habitat units (riffles, runs, pools) in three Virginia streams. Monte Carlo simulations were used to construct hypothetical series of habitat units, then examined how number of species, similarity in relative abundances, and number of microhabitats accumulated with increasing number of habitat units (i.e., sampling effort). The curves indicated that 90% of the species present were usually found by sampling 5 to 14 habitat units (stream length of 22-67 stream widths). Estimates of species relative abundances required less sampling effort for a given accuracy than estimates of number of species. Rates of species accumulation (with effort) varied among streams and reflected discontinuity in species distributions among habitat units. Most discontinuity seemed to be due to low population density rather than to habitat selectivity. Results from an Illinois stream corroborated our findings from Virginia, and suggested that greater sampling effort is needed to characterize fish community structure in more homogeneous stream reaches.
Schlüsselwörter: Fisch, Fließgewässer, Habitat, Verbreitung
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Steinmann, P. (1945). Frühreife und Zwergwuchs bei Salmoniden (Vol. 52).
Schlüsselwörter: Fisch, Seesaibling, Salvelinus alpinus, Wachstum
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Honsig-Erlenburg, W., & Friedl, T. (1997). Einfluß des Kormorans auf die Fischbestände in der mittleren Gail (Kärnten) (Vol. 50).
Schlüsselwörter: Fisch, Kormoran, Phalacrocorax carbo, Fischerei, Schaden
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Hahlbeck, E., & Müller, H. (2003). Untersuchungen des Zanderbestandes in den deutschen Küstengewässern der Ostsee von 1992 bis 2002 (Vol. 50).
Schlüsselwörter: Fisch, Zander, Sander luciopera, Bestand, Wachstum, Alter, Ostsee
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Marten, M., Werth, C., & Marten, D. (2004). Dar Marmorkrebs (Cambaridae, Decapoda) in Deutschland – ein weiteres Neozoon im Einzugsgebiet des Rheins (Vol. 50).
Schlüsselwörter: Krebs, Marmorkrebs, Verbreitung, Vorkommen, Neozoon
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Kainz, E., & Gollmann, H. P. (1997). Beiträge zur Biologie und Aufzucht des Perlfisches Rutilus frisii meidingeri (Nordmann) (Vol. 50).
Schlüsselwörter: Fisch, Perlfisch, Rutilus frisii meidingeri, Fortpflanzung, Biologie, Ei, Wanderung
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Steinmann, P. (1942). Experimentelle Untersuchungen über die Wüchsigkeit der Seesaibinge (Rötel) (Vol. 50).
Schlüsselwörter: Fisch, Seesaibling, Salvelinus alpinus, Wachstum, See
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Schneider, J. (1997). Erbrütungserfolg mit Lachseiern (Salmo salar L.) im Freiland in Edelstahl-Brutboxen (Vol. 50).
Schlüsselwörter: Brut, Fisch, Lachs, Salmo salar, Edelstahl-Brutbox
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Dankler, M. (1899). Der Rheinlachs oder Salm (Vol. 48).
Schlüsselwörter: Fisch, Lachs, Salmo salar, Rhein, Historisch
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